Essential oils Constituents of the leaves of Amomum gagnepainii and Amomum repoense

Abstract

The chemical constituents identified in the essential oils hydrodistilled from the leaves of Amomum gagnepainii T.L.Wu, K.Larsen and Turland and Amomum repoense Pierre ex Gagnep (Zingiberaceae) of Vietnam origin are reported. The chemical analyses were performed by means of gas chromatography-flame ionisation detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC-MS). The main compounds of A. gagnepainii were farnesyl acetate (18.5%), zerumbone (16.4%) and β-caryophyllene (10.5%). On the other hand, Amomum repoense comprised of monoterpenes dominated by β-pinene (33.5%), (E)-β-ocimene (9.6%), γ-terpinene (9.1%) and α-pinene (8.4%). This is the first report on the essential oils of A. gagnepainii and A. repoense grown in Vietnam or elsewhere.

The Phoebe genome sheds light on the evolution of magnoliids

“…Wood from P. bournei , known as “wood with golden wire”, is used in the production of high-quality furniture and handicrafts due to its vertical wood texture, unique fragrance, resistance to insects and rot, durability, and beauty 11 , 12 . In ancient times, P. bournei timber was often used in palace construction to produce columns that represented the power and status of the nobles 10 , 13 , 14 . P. bournei is often used as a street tree because of its straight trunk and broad crown 15 .…”

Antimicrobial activity of the essential oils from the leaves and stems of Amomum rubidumLamxay & N. S. Lý

“…The chemical constituents of volatiles of several Amomum plants have been documented (Chau et al, 2015;Dai et al, 2018;Huong et al, 2018). In addition, the biological activities of essential oils from other species of Amomum have been reported.…”

“…The aim of the present study was to examine the chemical constituents and antimicrobial activity of essential oils from the leaves and stem bark of Amomum rubidium, grown in Vietnam. This is in reference to our continued interest in the analysis of the chemical constituents of essential oils from Amomum plants (Chau et al, 2015;Dai et al, 2018;Huong et al, 2018) and other poorly studied species of Vietnamese flora (Thai et al, 2018). Amomum is a genus of plants native to China, the Indian subcontinent, Southeast Asia, New Guinea, and Queensland (Lamxay & Newman, 2012).…”

“…The main class of compounds in the leaves of A. maximum (Huong et al, 2015), A. longiligulare (Chau et al, 2015) and A. aculeatum (Huong et al, 2014) were monoterpene hydrocarbons and sesquiterpene hydrocarbons. The essential oil of A. gagnepainii (Huong et al, 2018) and the stem of A. longiligulare (Chau et al, 2015) were dominated by sesquiterpene hydrocarbons and oxygenated counterparts. Monoterpene hydrocarbons occurred in higher quantity in A. repoense (Huong et al, 2018) and A. villosum (Dai et al 2016).…”

“…The essential oil of A. gagnepainii (Huong et al, 2018) and the stem of A. longiligulare (Chau et al, 2015) were dominated by sesquiterpene hydrocarbons and oxygenated counterparts. Monoterpene hydrocarbons occurred in higher quantity in A. repoense (Huong et al, 2018) and A. villosum (Dai et al 2016). Oxygenated monoterpenes and sesquiterpene compounds constituted the bulk of essential oil from the leaves and fruits of A. muricarpum (Huong et al, 2015).…”